[wp-trac] [WordPress Trac] #34350: Update Backbone to 1.2.3 and Underscore to 1.8.3

[WordPress Trac]

#34350: Update Backbone to 1.2.3 and Underscore to 1.8.3
--------------------------------------------+------------------------------
 Reporter:  caseypatrickdriscoll            |       Owner:  adamsilverstein
     Type:  enhancement                     |      Status:  closed
 Priority:  normal                          |   Milestone:  4.5
Component:  External Libraries              |     Version:  4.4
 Severity:  normal                          |  Resolution:  fixed
 Keywords:  needs-testing has-patch commit  |     Focuses:  javascript
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Changes (by ocean90):

 * status:  assigned => closed
 * resolution:   => fixed


Comment:

 In [changeset:"36546"]:
 {{{
 #!CommitTicketReference repository="" revision="36546"
 Update Backbone and Underscore to the latest versions.

 Backbone, from 1.1.2 to 1.2.3. Underscore, from 1.6.0 to 1.8.3.

 The new versions of Backbone and Underscore offer numerous small bug fixes
 and some optimizations and other improvements. Check the
 [http://backbonejs.org/#changelog Backbone changelog] and
 [http://underscorejs.org/#changelog Underscore changelog] for the full
 details.

 The new versions include some significant changes that may break existing
 code. Plugins or themes that rely on the bundled Backbone and/or
 Underscore libraries should carefully check functionality with the latest
 versions and run any available unit tests to ensure compatibility.

 Some changes of note that were addressed in core as part of this upgrade:

 * `_.flatten` no longer works with objects since Underscore.js 1.7.
 `_.flatten()` working with objects was an unintended side-affect of the
 implementation, see
 [https://github.com/jashkenas/underscore/issues/1904#issuecomment-60241576
 underscore#1904]. Check any `_flatten` usage and only flatten arrays.
 * As of Backbone 1.2.0, you can no longer modify the `events` hash or your
 view's `el` property in `initialize`, so don't try to modify them there.
 * Since Underscore 1.7, Underscore templates no longer accept an initial
 data object. `_.template` always returns a function now so make sure you
 use it that way.

 Props adamsilverstein.
 Fixes #34350.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/34350#comment:47>
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